3D print canyon country
Water did this. Millions of years of the Colorado River cutting down through rock layers, and the elevation data holds onto every one of them.
Rather than the full width of a canyon rim, a tight meander like Horseshoe Bend — where the Colorado River doubles back on itself in a nearly closed loop, walls dropping straight down to the water — makes a more legible small print than trying to capture miles of canyon in one shape. The contrast between the flat plateau above and the sheer drop into the gorge is exactly what elevation-based relief is good at showing.
Terrain models like this print well as a single continuous piece — no buildings, no separate layers, just the terrain mesh with a bit of height exaggeration if you want the drop to read clearly at scale.